45089917 has 4 divisors (see below), whose sum is σ = 45115936. Its totient is φ = 45063900.

The previous prime is 45089911. The next prime is 45089923. The reversal of 45089917 is 71998054.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (45089911) and next prime (45089923).

It is a cyclic number.

It is not a de Polignac number, because 45089917 - 2⁷ = 45089789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45089911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10209 + ... + 13942.

It is an arithmetic number, because the mean of its divisors is an integer number (11278984).

Almost surely, 2^45089917 is an apocalyptic number.

It is an amenable number.

45089917 is a deficient number, since it is larger than the sum of its proper divisors (26019).

45089917 is a wasteful number, since it uses less digits than its factorization.

45089917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26018.

The product of its (nonzero) digits is 90720, while the sum is 43.

The square root of 45089917 is about 6714.9026053994. The cubic root of 45089917 is about 355.9260803685.

The spelling of 45089917 in words is "forty-five million, eighty-nine thousand, nine hundred seventeen".